Found 2 books

Moonbeams of Mahamudra

[en] Moonbeams of Mahamudra Snow Lion Publications

Elizabeth Callahan & Namgyal, Dakpo Tashi

download read it!
Mahamudra · the Moonlight · Quintessence of Mind and Meditation

[en] Mahamudra · the Moonlight · Quintessence of Mind and Meditation Wisdom Publications

Lama, The Dalai & Namgyal, Dakpo Tashi & Lhalungpa, Lobsang & Lhalungpa, Lobsang P.

download read it!